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The fundamentals of the Creme Egg

A Mondelez International spokesman said: "The fundamentals of the Cadbury Creme Egg remain exactly the same - delicious milk chocolate and the unique creme centre that consumers love.We have always used a range of milk chocolate blends for different products."

The spokesman added the eggs may have used Dairy Milk in its shell in recent years but it has never been advertised as such.

Mini Eggs are also made from standard traditional Cadbury milk chocolate.

Creme Eggs were first sold in the UK in 1971 and they're only sold from January in the run-up to Easter.

Anyway, while you process your yellow gooey outrage, here are some other recipe changes that didn't go down well.

Coca-Cola

The most famous recipe change came in 1985.

Coca-Cola made its first formula change in 99 years (since 1886) when it launched New Coke.

People were so outraged the company was forced to restock shelves with the original coke.

It rebranded to Coca-Cola Classic three months later.

Kellogg's Special K

There were hundreds of complaints after Kellogg's changed the recipe for Special K in May 2013.